Answer :
Answer:
y = 2(4)^x
Step-by-step explanation:
y = ab^x
Plug in the values:
2 = ab^0
128 = ab^3
128/2 = ab^3/ab^0
64 = b^3
b = 4
2 = a(4)^0
a = 2
Answer:
y = 2(4)^x
Step-by-step explanation:
y = ab^x
Plug in the values:
2 = ab^0
128 = ab^3
128/2 = ab^3/ab^0
64 = b^3
b = 4
2 = a(4)^0
a = 2